Some of this might have been covered before, but here is a few things i picked up with custom battles, and some others are purely comments and suggestions (i have not read the patch notes or any notes or posts about future tweaks, so do excuse if it what i mentioned here has been covered there.)
1) morale is out of whack, i was just testing the efficency of slingers. when their general routed for nearly no reason after sustaining only a single volley from legionnaires (getting about 20-30 death). which seems a little weak.
2) i'm not sure if this was a one of glitch or part of you mod, but in the same custom battle as above, my legionnaires glitched between fighting (slingers who charged me) and hiding behind their shields because they where being fired at by slingers. it seemed strange as the animations for one did not line up, it would instantly switch from "raise shields" to "braced shield" immediately, then back again, i tried the same thing without any mods to see if this was part of the mod, i did not manage to replicate it, which is possible it was just a one off.
3)just a bit of a history nit picking, but i'm a bit sick and tired of seeing lorica segmentata everywhere with post-reform units, so will you guys be changing this? and also while on topic, and this is from my experience with DeI, having different language names for various units are fun and all, but then you have an issue with people not being able to easily recognize each unit or not knowing what the unit is. so, if you do use name, including some sort of abbreviation or other inside description/title/name would be great.
4)Will you add more formations to various units? such as shield wall (and or screen) to units such as hoplites? (i do believe romans used the shield wall as well, not sure tho. anyone? but adding more formations would be a nice addition to the game personally thinking, especially with different things, i've experimented and having a triangle (or wedge) with infantry works out pretty good:
5) fire at will with romans? i personally think it's a strange and a little funny way of doing things, i have also noticed the unit in question sometimes glitchs between throwing their pilum fighting or bracing for charge. (see 2, same issue)
6) i find the public order a bit harsh, i personally think only buildings like docks, farms, trade centres and recruitment grounds should create squalor, while others such as government buildings shouldn't.
7) lower recruitement points is a great idea. =) no bad things on that part, adds a nice twist. and i think a post on page one had a great idea, making a levy army would be excellent.
8) Camera too high, one thing i really enjoyed with mods like DeI is the camera height (editing a single value inside the camera table) to something lower, 1 is a good value if i remember correctly as the always-over-head get a little annoying when you try and see things close up or try and get "inside" the fighting. also, i've never ventured into that, but cane the height for the over-head camera height editeble (or whatever the name is for the camera angle after pressing insert)
9) some units have names and text description missing, such as a hastati in rome.
10) will you be making the colours of clothes more 'normal'? and being more diverse in colours especially with peasant units, possible having more pale colours such as off-white and greys instead of bright blues, reds and yellows?
one more that's quite minor, certain loading screen seemed pixelated or badly renditioned with high-res gameplay such as the main screen (just after loading), this along with some icons and such. or maybe it's just me....?